带边缘加劲的单个蝴蝶形钢板剪力墙滞回分析

Hysteretic analysis of self-centering steel frame with infilled butterfly-shaped plate

为了提升传统钢板剪力墙的耗能性能,提出了一种新型的钢板剪力墙形式——带边缘加劲的单个蝴蝶形钢板剪力墙。通过有限元软件ANSYS对其进行滞回模拟,得到滞回曲线、骨架曲线、耗能曲线及刚度退化曲线。为了研究带边缘加劲的单个蝴蝶形钢板剪力墙的耗能能力和刚度变化,在层高h一定的条件下,通过改变钢板宽度b及钢板厚度t,进行对比分析,得出不同高厚比h/t和宽厚比b/t对钢板耗能能力、承载力和刚度的影响,并给出建议的h/t与b/t的取值范围。

A new type of steel plate shear wall,which is a single butterfly shaped steel plate shear wall with edge stiffener,is presented in this paper to optimize the traditional energy dissipation steel plate shear wall.The finite element software ANSYS was adopted to simulate the hysteresis loop,the hysteretic curve,skeleton curve,energy dissipation curve and stiffness degradation curve were obtained.By changing the parameters of high thickness ra鄄tio h/t and width thickness ratio h/b,the energy dissipation capacity,the bearing capacity and stiffness variation of the steel plate under different parameters are obtained in this paper,and the range of the proposed h/t and b/t is given.